document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=301185>Question 301185</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There is a company that has a product which lasts with a mean of 18 months and standard deviation of 3 months.  The company can only afford to replace 2% of the products.  How many months should the warranty be?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #215973 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=215973\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There is a company that has a product which lasts with a mean of 18 months and standard deviation of 3 months. The company can only afford to replace 2% of the products. How many months should the warranty be?<BR>\n" );
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document.write( "Find the z-value that has a left tail of 2%<BR>\n" );
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document.write( "invNorm(0.02) = -2.0537<BR>\n" );
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document.write( "Find the corresponding \"x\" value using x = zs+u<BR>\n" );
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document.write( "x = -2.0537*3 + 18<BR>\n" );
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document.write( "x = 11.84 months<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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